Curtain roller



' July 24, 1923 c. o. MATHEWS CURTAIN ROLLER Filed Jan. 23. 1923 ,jwuen fox Patentedduly 24, 1923.

CHARLES 0. MATHEWS, 0F DEVON, CONNECTICUT.

CURTAIN ROLLER.

Application filed January 23, 1923. Serial No. 614,355.

To all whom it may concern:

Be it known that I, CHARLES O. MATHEWS, a citizen of the United States, residing at Devon, New Haven County, Connecticut, have invented certain new and useful Improvements in Curtain Rollers; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in curtain rollers and pertains more especially tothe end caps of the barrel or tube and the manner of forming same.

In curtain rollers of the present type the end caps have heretofore been formed of integral castings, necessitating milling to fit same to the barrel ends. The milling operation is not only expensive, but in "addition, a great. many ofthe caps had to be discarded owing to imperfection in the castings. Moreover, the castings are easily broken or fractured so as to be rendered useless, especially in the instance of the posts, and upon breaking of'one of the latter, the entire cap must be discarded and an entirely new one installed. I j

The present invention therefore aims to provideend cap constructions. which overcome all of the above objections and which also afford improved means for anchoring one end of the usual spring to the barrel. 7 v p Another object of the invention is to provide an end. cap construction which permits of the use of any desired number of pawls.

Still further and other objects will be later set forth and manifested in the course of the following description.

In the drawings Figure 1, is a top plan view of the roller and its supporting brackets;

Figure 2, is a section on line 2-2 of Figure 1;

Figure 3, is a section On line 3-3 of Figure 2, and

Figure 4, is a section on line 4.-4 of Figure 2.

In proceeding in accordance with the present invention, a tube or barrel 1 is employed, through which a rod 2 extends, the rod having a cut-out portion 3,. forming teeth-like parts to engage the pawls 4, the latter mounted on posts 5. The posts 5 with the pawls thereon are driven through aper tures in a step 6 which is of disk like formation and are headed at 7 so as to have a riveted relation to the step 6. The disk 6 abuts an end disk 8 of greater diameter than disk 6, the two disks being centered so as to provide the step-like forlnationabove mentioned, and having registering central apertures through which a bushing 9 is passed. The ends or". the bushing 9 are flanged or headed outwardly at 10 so as to hold the two disks in rigid relation and with the heads 7 of the rivets 5 held against the disk 8. The disk 6 fits within the end of barrel 1, while disk 8 abuts the end edge of the barrel and is soldered or brazed thereto, as indicated at 11. I

The end cap structure at the opposite end of the barrel embodies an outer or end disk 12 and an inner disk 13, both similar to the disks 6 and 8 and secured together by a bushing 14, headed at 15 againstdisk12, the inner end of the bushing having an ovaloid head 16, the ends of which receive the outer convolution of the usual coil spring 17 and being bent to clamp the said convolution to the disk 13 and'at the'same time to clamp the latter to disk 12. The spring 1'1 is engaged over a suitable fabric tube 18 which is received over the adjacent end of the rod'2, to prevent rattling of the spring against the rod, the inner end of the spring being soldered at 19 to the rod. Preferably each bushing 9 and 14 is counterbored so as to form ashort bearing for the rod 2 to thereby lessen friction although this is optional and can be omitted. The rod 2 has a reduced threaded end 20 forming a shoulder 21 against which the disk 16 abuts, the end 20 being threaded in supporting bracket 22, while the opposite end of the rod 2 is freely received in a smooth bore in a supporting bracket 23 at the opposite end of the roller. Disk 12 is soldered at 24 to the barrel 1.

From the foregoing it will be seen that the end caps are formed of pairs of separate disks each pair united by a bushing, the latter receiving the ends of the tensioned rod 2 therethrough. and affording bearings therefor, thus functioning in a dual manner,

the latter dual functioning being also true of the head 16 of bushing 14 which acts to further connect one end of the tensioning spring 17 to the adjacent end cap structure.

By the use of malleable metal parts as a 1. In a curtain roller, a barrel having a spring tensioned rod therein, end 'eaps'for the barrel including inner and outer abutting disks the inner ones received in the barrel ends, bushings receiving the rod ends, said disks having registering central poi foratifons, through which the bushings are passed, the ends of the bushings being headed into engagement with the outer faces of the disks, one of the bushingshaving an oval-like head to clamp the outer cpnvolution of the spring to the inner disk of the adjacent end cap, pawls, and posts for the pawls having ends passed through the inner disk of the other end cap and headed with their heads engaged against the outer disk oftllve said other end cap.

2, In a curtain roller, a barrel having a spring-tensioned rod therein, end caps for the barrel including inner and outer abutting disks the inner ones received in the barrelends, bushings receiving the rod ends, said disks having registering central perforations, through which the bushings are passed, the ends of the bushings being head red into engagement jwith the outer faces of the disks, the inner head of one of the bushings engaging and clamping the outer convolution of the spring to the inner disk of theadja-cent end cap, pawls and posts for the pawls having ends passed through the inner disk of the other end cap and headed thereagainst.

3. In a curtain roller, a barrel having a spring tensioned rod therein, end caps for the barrel including inner and outer abutting disks the inner ones received in the barrel ends, bushings receiving the rod nd aid dis s hav n ma ter n e ral perforations through Which the bushings are passed, the ends of thebushings being headed into engagement withthe oiiter faces of the disks, pawls, and posts for the pawls riveted to inner of one of the end caps. f v

, 4. In, a curtain roller, a barrel having a spring tensioned rod therein, end caps for the barrel including inner and outer abutting disks the inner ones received in the barrel ends, bushings receiving'the 'rodends, said disks having registering central perforations through which the bushings are passed, the ends'of the bushings being headed into engagement with the outer faces of the disks, the inner head of one of the bushings engaging and clamping the outer convolution of the spring to the inner disk of the adjacent end cap,and pawls' carried by the other end, cap. I 5. In a curtain roller, a barrel having a spring tensioned rodthercin, end caps for the barrel including inner and outer abut ting disks the inner ones received in the barrel ends, and bushings receiving the rod ends, said disks having registering central perforations through "which the bushings are passedfthe endsof the bushings being headed into engagement with the outer faces of the disks.

6. In a curtain roller, a barrel-having a spring tensionedrod therein, end caps for the barrel including inner and'outer abutting' disks the inner ones received in the barrel ends, bushings receiving the rodends, said disks having registering central perforations through iwhich the bushings are passed, the ends of the bushings being head ed into engagement with the disks, pawls, and posts for the'pawls carried by the inner. disk of onset the end caps.

In testimony whereof I affix my signature hereto.

CHARLES o. MA HEWS. 

